Send OTP

Send an OTP to a user's phone number.

Use this endpoint to send a one-time password (OTP) to a user's phone number.

Phone numbers must be in **E.164 format**.

**Request fields**

- `phone` *(required)* — User phone number in E.164 format

- `channel` — sms (default)

curl -X POST https://sandbox.api.trustdigits.io/v1/otp/send
-H "Authorization: Bearer YOUR_API_KEY"
-H "Content-Type: application/json"
-d '{"phone": "+6591234567"}'